./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/twostage_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread/twostage_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c1c75e051173a22f60f33f26eab32e0b3a7dcaf46f2d4cc494d0c9d8775c984e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 09:46:15,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 09:46:15,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 09:46:15,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 09:46:15,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 09:46:15,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 09:46:15,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 09:46:15,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 09:46:15,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 09:46:15,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 09:46:15,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 09:46:15,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 09:46:15,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 09:46:15,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 09:46:15,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 09:46:15,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 09:46:15,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 09:46:15,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 09:46:15,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 09:46:15,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 09:46:15,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 09:46:15,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 09:46:15,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 09:46:15,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 09:46:15,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 09:46:15,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 09:46:15,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 09:46:15,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 09:46:15,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 09:46:15,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 09:46:15,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 09:46:15,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 09:46:15,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 09:46:15,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 09:46:15,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 09:46:15,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 09:46:15,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 09:46:15,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 09:46:15,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 09:46:15,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 09:46:15,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 09:46:15,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/config/svcomp-Reach-32bit-GemCutter_Default.epf [2022-12-13 09:46:15,408 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 09:46:15,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 09:46:15,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 09:46:15,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 09:46:15,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 09:46:15,418 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 09:46:15,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 09:46:15,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 09:46:15,419 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 09:46:15,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 09:46:15,419 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 09:46:15,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 09:46:15,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 09:46:15,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 09:46:15,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 09:46:15,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 09:46:15,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 09:46:15,420 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 09:46:15,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 09:46:15,421 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 09:46:15,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 09:46:15,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 09:46:15,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 09:46:15,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 09:46:15,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:46:15,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 09:46:15,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 09:46:15,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 09:46:15,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 09:46:15,422 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2022-12-13 09:46:15,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 09:46:15,422 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-13 09:46:15,422 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-12-13 09:46:15,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 09:46:15,423 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-12-13 09:46:15,423 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-12-13 09:46:15,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1c75e051173a22f60f33f26eab32e0b3a7dcaf46f2d4cc494d0c9d8775c984e [2022-12-13 09:46:15,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 09:46:15,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 09:46:15,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 09:46:15,637 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 09:46:15,638 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 09:46:15,638 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/pthread/twostage_3.i [2022-12-13 09:46:18,227 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 09:46:18,469 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 09:46:18,469 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/sv-benchmarks/c/pthread/twostage_3.i [2022-12-13 09:46:18,485 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/data/5bb94dadb/b06345b5323f4663927336c5714a1fa5/FLAG1772ee526 [2022-12-13 09:46:18,498 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/data/5bb94dadb/b06345b5323f4663927336c5714a1fa5 [2022-12-13 09:46:18,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 09:46:18,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 09:46:18,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 09:46:18,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 09:46:18,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 09:46:18,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:46:18" (1/1) ... [2022-12-13 09:46:18,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@731df9d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:18, skipping insertion in model container [2022-12-13 09:46:18,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:46:18" (1/1) ... [2022-12-13 09:46:18,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 09:46:18,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 09:46:19,049 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,051 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/sv-benchmarks/c/pthread/twostage_3.i[58991,59004] [2022-12-13 09:46:19,057 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,060 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,061 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,065 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,068 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,069 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,071 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,073 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-13 09:46:19,074 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,074 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-13 09:46:19,075 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:46:19,082 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 09:46:19,119 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,119 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/sv-benchmarks/c/pthread/twostage_3.i[58991,59004] [2022-12-13 09:46:19,120 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,123 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,124 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,126 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,128 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,129 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,130 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,132 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-13 09:46:19,132 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,133 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-13 09:46:19,133 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 09:46:19,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 09:46:19,187 INFO L208 MainTranslator]: Completed translation [2022-12-13 09:46:19,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:19 WrapperNode [2022-12-13 09:46:19,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 09:46:19,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 09:46:19,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 09:46:19,189 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 09:46:19,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:19" (1/1) ... [2022-12-13 09:46:19,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:19" (1/1) ... [2022-12-13 09:46:19,231 INFO L138 Inliner]: procedures = 372, calls = 49, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 170 [2022-12-13 09:46:19,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 09:46:19,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 09:46:19,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 09:46:19,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 09:46:19,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:19" (1/1) ... [2022-12-13 09:46:19,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:19" (1/1) ... [2022-12-13 09:46:19,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:19" (1/1) ... [2022-12-13 09:46:19,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:19" (1/1) ... [2022-12-13 09:46:19,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:19" (1/1) ... [2022-12-13 09:46:19,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:19" (1/1) ... [2022-12-13 09:46:19,252 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:19" (1/1) ... [2022-12-13 09:46:19,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:19" (1/1) ... [2022-12-13 09:46:19,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 09:46:19,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 09:46:19,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 09:46:19,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 09:46:19,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:19" (1/1) ... [2022-12-13 09:46:19,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 09:46:19,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:46:19,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 09:46:19,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 09:46:19,315 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2022-12-13 09:46:19,315 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2022-12-13 09:46:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2022-12-13 09:46:19,316 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2022-12-13 09:46:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 09:46:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 09:46:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 09:46:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 09:46:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 09:46:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 09:46:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 09:46:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 09:46:19,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 09:46:19,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 09:46:19,318 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 09:46:19,415 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 09:46:19,417 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 09:46:19,644 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 09:46:19,654 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 09:46:19,655 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 09:46:19,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:46:19 BoogieIcfgContainer [2022-12-13 09:46:19,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 09:46:19,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 09:46:19,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 09:46:19,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 09:46:19,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:46:18" (1/3) ... [2022-12-13 09:46:19,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58dfd2b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:46:19, skipping insertion in model container [2022-12-13 09:46:19,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:46:19" (2/3) ... [2022-12-13 09:46:19,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58dfd2b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:46:19, skipping insertion in model container [2022-12-13 09:46:19,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:46:19" (3/3) ... [2022-12-13 09:46:19,665 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2022-12-13 09:46:19,672 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 09:46:19,679 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 09:46:19,679 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 09:46:19,679 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 09:46:19,729 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-13 09:46:19,765 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:46:19,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-12-13 09:46:19,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:46:19,767 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-12-13 09:46:19,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-12-13 09:46:19,799 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-12-13 09:46:19,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == funcBThread1of1ForFork1 ======== [2022-12-13 09:46:19,815 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@24c66ce7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 09:46:19,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 09:46:19,978 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 09:46:19,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:46:19,983 INFO L85 PathProgramCache]: Analyzing trace with hash 175127624, now seen corresponding path program 1 times [2022-12-13 09:46:19,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:46:19,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667233120] [2022-12-13 09:46:19,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:46:19,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:46:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:46:20,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:46:20,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:46:20,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667233120] [2022-12-13 09:46:20,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667233120] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:46:20,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:46:20,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 09:46:20,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665240956] [2022-12-13 09:46:20,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:46:20,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 09:46:20,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:46:20,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 09:46:20,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 09:46:20,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:20,209 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:46:20,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:46:20,210 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:20,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:20,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 09:46:20,232 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 09:46:20,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:46:20,233 INFO L85 PathProgramCache]: Analyzing trace with hash 749694732, now seen corresponding path program 1 times [2022-12-13 09:46:20,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:46:20,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142961148] [2022-12-13 09:46:20,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:46:20,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:46:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:46:20,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:46:20,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:46:20,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142961148] [2022-12-13 09:46:20,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142961148] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:46:20,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:46:20,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:46:20,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119056182] [2022-12-13 09:46:20,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:46:20,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:46:20,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:46:20,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:46:20,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:46:20,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:20,373 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:46:20,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:46:20,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:20,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:20,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:20,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:46:20,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 09:46:20,408 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 09:46:20,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:46:20,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1401921379, now seen corresponding path program 1 times [2022-12-13 09:46:20,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:46:20,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475061514] [2022-12-13 09:46:20,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:46:20,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:46:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:46:20,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:46:20,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:46:20,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475061514] [2022-12-13 09:46:20,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475061514] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:46:20,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:46:20,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 09:46:20,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206747424] [2022-12-13 09:46:20,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:46:20,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 09:46:20,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:46:20,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 09:46:20,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 09:46:20,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:20,561 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:46:20,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:46:20,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:20,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:46:20,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:20,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:20,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:46:20,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:46:20,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 09:46:20,668 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 09:46:20,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:46:20,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1172978243, now seen corresponding path program 1 times [2022-12-13 09:46:20,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:46:20,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799291904] [2022-12-13 09:46:20,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:46:20,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:46:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:46:21,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:46:21,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:46:21,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799291904] [2022-12-13 09:46:21,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799291904] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:46:21,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 09:46:21,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 09:46:21,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230283769] [2022-12-13 09:46:21,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:46:21,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 09:46:21,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:46:21,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 09:46:21,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 09:46:21,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:21,031 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:46:21,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:46:21,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:21,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:46:21,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:46:21,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:21,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:21,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:46:21,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:46:21,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 09:46:21,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 09:46:21,315 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 09:46:21,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:46:21,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1351700097, now seen corresponding path program 2 times [2022-12-13 09:46:21,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:46:21,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907282204] [2022-12-13 09:46:21,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:46:21,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:46:21,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 09:46:21,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:46:21,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 09:46:21,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907282204] [2022-12-13 09:46:21,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907282204] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 09:46:21,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494608814] [2022-12-13 09:46:21,652 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 09:46:21,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:46:21,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/z3 [2022-12-13 09:46:21,684 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 09:46:21,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 09:46:21,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 09:46:21,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 09:46:21,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 09:46:21,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 09:46:21,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 09:46:21,894 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 09:46:21,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-13 09:46:21,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 09:46:22,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 09:46:22,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 09:46:22,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 09:46:22,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 09:46:22,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494608814] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 09:46:22,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 09:46:22,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 12 [2022-12-13 09:46:22,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386559155] [2022-12-13 09:46:22,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 09:46:22,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 09:46:22,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 09:46:22,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 09:46:22,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-12-13 09:46:22,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:22,051 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-12-13 09:46:22,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 09:46:22,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:22,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:46:22,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:46:22,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-12-13 09:46:22,051 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:22,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 09:46:22,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:46:22,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 09:46:22,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 09:46:22,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 09:46:22,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 09:46:22,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 09:46:22,500 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 09:46:22,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 09:46:22,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1298698173, now seen corresponding path program 3 times [2022-12-13 09:46:22,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 09:46:22,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374127426] [2022-12-13 09:46:22,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 09:46:22,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 09:46:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 09:46:22,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 09:46:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 09:46:22,722 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 09:46:22,722 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 09:46:22,723 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location funcBErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 09:46:22,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 09:46:22,731 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2022-12-13 09:46:22,733 INFO L307 ceAbstractionStarter]: Result for error location funcBThread1of1ForFork1 was UNSAFE (1/2) [2022-12-13 09:46:22,736 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 09:46:22,736 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 09:46:22,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:46:22 BasicIcfg [2022-12-13 09:46:22,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 09:46:22,818 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 09:46:22,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 09:46:22,818 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 09:46:22,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:46:19" (3/4) ... [2022-12-13 09:46:22,820 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 09:46:22,898 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/witness.graphml [2022-12-13 09:46:22,898 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 09:46:22,898 INFO L158 Benchmark]: Toolchain (without parser) took 4396.56ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 118.0MB in the beginning and 66.8MB in the end (delta: 51.1MB). Peak memory consumption was 101.9MB. Max. memory is 16.1GB. [2022-12-13 09:46:22,899 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 124.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 09:46:22,899 INFO L158 Benchmark]: CACSL2BoogieTranslator took 684.71ms. Allocated memory is still 155.2MB. Free memory was 118.0MB in the beginning and 76.4MB in the end (delta: 41.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-12-13 09:46:22,899 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.02ms. Allocated memory is still 155.2MB. Free memory was 76.4MB in the beginning and 73.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 09:46:22,899 INFO L158 Benchmark]: Boogie Preprocessor took 23.45ms. Allocated memory is still 155.2MB. Free memory was 73.5MB in the beginning and 71.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 09:46:22,900 INFO L158 Benchmark]: RCFGBuilder took 401.41ms. Allocated memory is still 155.2MB. Free memory was 71.4MB in the beginning and 119.1MB in the end (delta: -47.7MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-12-13 09:46:22,900 INFO L158 Benchmark]: TraceAbstraction took 3158.17ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 118.6MB in the beginning and 87.8MB in the end (delta: 30.8MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. [2022-12-13 09:46:22,900 INFO L158 Benchmark]: Witness Printer took 80.03ms. Allocated memory is still 203.4MB. Free memory was 87.8MB in the beginning and 66.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 09:46:22,902 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 124.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 684.71ms. Allocated memory is still 155.2MB. Free memory was 118.0MB in the beginning and 76.4MB in the end (delta: 41.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.02ms. Allocated memory is still 155.2MB. Free memory was 76.4MB in the beginning and 73.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.45ms. Allocated memory is still 155.2MB. Free memory was 73.5MB in the beginning and 71.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 401.41ms. Allocated memory is still 155.2MB. Free memory was 71.4MB in the beginning and 119.1MB in the end (delta: -47.7MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3158.17ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 118.6MB in the beginning and 87.8MB in the end (delta: 30.8MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. * Witness Printer took 80.03ms. Allocated memory is still 203.4MB. Free memory was 87.8MB in the beginning and 66.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 10929, independent: 10448, independent conditional: 5125, independent unconditional: 5323, dependent: 481, dependent conditional: 449, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10484, independent: 10448, independent conditional: 5125, independent unconditional: 5323, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10484, independent: 10448, independent conditional: 5125, independent unconditional: 5323, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10492, independent: 10448, independent conditional: 3, independent unconditional: 10445, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10492, independent: 10448, independent conditional: 3, independent unconditional: 10445, dependent: 44, dependent conditional: 2, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10492, independent: 10448, independent conditional: 3, independent unconditional: 10445, dependent: 44, dependent conditional: 2, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4769, independent: 4735, independent conditional: 3, independent unconditional: 4732, dependent: 34, dependent conditional: 2, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4769, independent: 4707, independent conditional: 0, independent unconditional: 4707, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 62, independent: 28, independent conditional: 3, independent unconditional: 25, dependent: 34, dependent conditional: 2, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 62, independent: 28, independent conditional: 3, independent unconditional: 25, dependent: 34, dependent conditional: 2, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 167, independent: 93, independent conditional: 8, independent unconditional: 85, dependent: 74, dependent conditional: 5, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 10492, independent: 5713, independent conditional: 0, independent unconditional: 5713, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 4769, unknown conditional: 5, unknown unconditional: 4764] , Statistics on independence cache: Total cache size (in pairs): 4769, Positive cache size: 4735, Positive conditional cache size: 3, Positive unconditional cache size: 4732, Negative cache size: 34, Negative conditional cache size: 2, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3, Maximal queried relation: 2, Independence queries for same thread: 445 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.3s, Number of persistent set computation: 1539, Number of trivial persistent sets: 1443, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5355, independent: 5323, independent conditional: 0, independent unconditional: 5323, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 10929, independent: 10448, independent conditional: 5125, independent unconditional: 5323, dependent: 481, dependent conditional: 449, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10484, independent: 10448, independent conditional: 5125, independent unconditional: 5323, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10484, independent: 10448, independent conditional: 5125, independent unconditional: 5323, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10492, independent: 10448, independent conditional: 3, independent unconditional: 10445, dependent: 44, dependent conditional: 5, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10492, independent: 10448, independent conditional: 3, independent unconditional: 10445, dependent: 44, dependent conditional: 2, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10492, independent: 10448, independent conditional: 3, independent unconditional: 10445, dependent: 44, dependent conditional: 2, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4769, independent: 4735, independent conditional: 3, independent unconditional: 4732, dependent: 34, dependent conditional: 2, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4769, independent: 4707, independent conditional: 0, independent unconditional: 4707, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 62, independent: 28, independent conditional: 3, independent unconditional: 25, dependent: 34, dependent conditional: 2, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 62, independent: 28, independent conditional: 3, independent unconditional: 25, dependent: 34, dependent conditional: 2, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 167, independent: 93, independent conditional: 8, independent unconditional: 85, dependent: 74, dependent conditional: 5, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 10492, independent: 5713, independent conditional: 0, independent unconditional: 5713, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 4769, unknown conditional: 5, unknown unconditional: 4764] , Statistics on independence cache: Total cache size (in pairs): 4769, Positive cache size: 4735, Positive conditional cache size: 3, Positive unconditional cache size: 4732, Negative cache size: 34, Negative conditional cache size: 2, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3, Maximal queried relation: 2, Independence queries for same thread: 445 - CounterExampleResult [Line: 1268]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1236] 0 static int iTThreads = 2; VAL [iTThreads={13:0}] [L1237] 0 static int iRThreads = 1; VAL [iRThreads={14:0}, iTThreads={13:0}] [L1238] 0 static int data1Value = 0; VAL [data1Value=0, iRThreads={14:0}, iTThreads={13:0}] [L1239] 0 static int data2Value = 0; VAL [data1Value=0, data2Value=0, iRThreads={14:0}, iTThreads={13:0}] [L1240] 0 pthread_mutex_t *data1Lock; VAL [data1Lock={0:0}, data1Value=0, data2Value=0, iRThreads={14:0}, iTThreads={13:0}] [L1241] 0 pthread_mutex_t *data2Lock; VAL [data1Lock={0:0}, data1Value=0, data2Lock={0:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}] [L1274] 0 int i,err; VAL [\old(argc)=3, argc=3, argv={61:62}, argv={61:62}, data1Lock={0:0}, data1Value=0, data2Lock={0:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}] [L1275] COND TRUE 0 argc != 1 VAL [\old(argc)=3, argc=3, argv={61:62}, argv={61:62}, data1Lock={0:0}, data1Value=0, data2Lock={0:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}] [L1276] COND FALSE 0 !(argc != 3) VAL [\old(argc)=3, argc=3, argv={61:62}, argv={61:62}, data1Lock={0:0}, data1Value=0, data2Lock={0:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}] [L1284] EXPR 0 \read(iTThreads) VAL [\old(argc)=3, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={0:0}, data1Value=0, data2Lock={0:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}] [L1284] 0 iTThreads > 100000 || iRThreads > 100000 VAL [\old(argc)=3, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={0:0}, data1Value=0, data2Lock={0:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}, iTThreads > 100000 || iRThreads > 100000=0] [L1284] EXPR 0 \read(iRThreads) VAL [\old(argc)=3, \read(iRThreads)=15, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={0:0}, data1Value=0, data2Lock={0:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}, iTThreads > 100000 || iRThreads > 100000=0] [L1284] 0 iTThreads > 100000 || iRThreads > 100000 VAL [\old(argc)=3, \read(iRThreads)=15, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={0:0}, data1Value=0, data2Lock={0:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}, iTThreads > 100000 || iRThreads > 100000=0] [L1284] COND FALSE 0 !(iTThreads > 100000 || iRThreads > 100000) VAL [\old(argc)=3, \read(iRThreads)=15, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={0:0}, data1Value=0, data2Lock={0:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}, iTThreads > 100000 || iRThreads > 100000=0] [L1287] 0 data1Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) VAL [\old(argc)=3, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=0, data2Lock={0:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}, malloc(sizeof(pthread_mutex_t))={17:0}] [L1288] 0 data2Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) VAL [\old(argc)=3, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=0, data2Lock={16:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}, malloc(sizeof(pthread_mutex_t))={16:0}] [L1289] EXPR 0 err = pthread_mutex_init(data1Lock, ((void *)0)) VAL [\old(argc)=3, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=0, data2Lock={16:0}, data2Value=0, err=0, iRThreads={14:0}, iTThreads={13:0}] [L1289] COND FALSE 0 !(0 != (err = pthread_mutex_init(data1Lock, ((void *)0)))) VAL [\old(argc)=3, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=0, data2Lock={16:0}, data2Value=0, err=0, iRThreads={14:0}, iTThreads={13:0}] [L1293] EXPR 0 err = pthread_mutex_init(data2Lock, ((void *)0)) VAL [\old(argc)=3, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=0, data2Lock={16:0}, data2Value=0, err=0, iRThreads={14:0}, iTThreads={13:0}] [L1293] COND FALSE 0 !(0 != (err = pthread_mutex_init(data2Lock, ((void *)0)))) VAL [\old(argc)=3, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=0, data2Lock={16:0}, data2Value=0, err=0, iRThreads={14:0}, iTThreads={13:0}] [L1297] EXPR 0 \read(iTThreads) VAL [\old(argc)=3, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=0, data2Lock={16:0}, data2Value=0, err=0, iRThreads={14:0}, iTThreads={13:0}] [L1297] 0 pthread_t tPool[iTThreads]; VAL [\old(argc)=3, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=0, data2Lock={16:0}, data2Value=0, err=0, iRThreads={14:0}, iTThreads={13:0}, tPool={31:0}] [L1298] EXPR 0 \read(iRThreads) VAL [\old(argc)=3, \read(iRThreads)=15, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=0, data2Lock={16:0}, data2Value=0, err=0, iRThreads={14:0}, iTThreads={13:0}, tPool={31:0}] [L1298] 0 pthread_t rPool[iRThreads]; VAL [\old(argc)=3, \read(iRThreads)=15, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=0, data2Lock={16:0}, data2Value=0, err=0, iRThreads={14:0}, iTThreads={13:0}, rPool={32:0}, tPool={31:0}] [L1299] 0 i = 0 VAL [\old(argc)=3, \read(iRThreads)=15, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=0, data2Lock={16:0}, data2Value=0, err=0, i=0, iRThreads={14:0}, iTThreads={13:0}, rPool={32:0}, tPool={31:0}] [L1299] EXPR 0 \read(iTThreads) VAL [\old(argc)=3, \read(iRThreads)=15, \read(iTThreads)=1, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=0, data2Lock={16:0}, data2Value=0, err=0, i=0, iRThreads={14:0}, iTThreads={13:0}, rPool={32:0}, tPool={31:0}] [L1299] COND TRUE 0 i < iTThreads VAL [\old(argc)=3, \read(iRThreads)=15, \read(iTThreads)=1, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=0, data2Lock={16:0}, data2Value=0, err=0, i=0, iRThreads={14:0}, iTThreads={13:0}, rPool={32:0}, tPool={31:0}] [L1300] EXPR, FCALL, FORK 0 pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)) VAL [\old(argc)=3, \read(iRThreads)=15, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=0, data2Lock={16:0}, data2Value=0, err=0, i=0, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0))=1, rPool={32:0}, tPool={31:0}] [L1246] 1 data1Value = 1 VAL [data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}] [L1300] EXPR 0 err = pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)) VAL [\old(argc)=3, \read(iRThreads)=15, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=0, err=0, i=0, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0))=1, pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0))=0, rPool={32:0}, tPool={31:0}] [L1300] COND FALSE 0 !(0 != (err = pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)))) VAL [\old(argc)=3, \read(iRThreads)=15, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=0, err=0, i=0, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0))=1, pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0))=0, rPool={32:0}, tPool={31:0}] [L1299] 0 i++ VAL [\old(argc)=3, \read(iRThreads)=15, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=0, err=0, i=1, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, rPool={32:0}, tPool={31:0}] [L1299] EXPR 0 \read(iTThreads) VAL [\old(argc)=3, \read(iRThreads)=15, \read(iTThreads)=1, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=0, err=0, i=1, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, rPool={32:0}, tPool={31:0}] [L1299] COND FALSE 0 !(i < iTThreads) VAL [\old(argc)=3, \read(iRThreads)=15, \read(iTThreads)=1, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=0, err=0, i=1, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, rPool={32:0}, tPool={31:0}] [L1305] 0 i = 0 VAL [\old(argc)=3, \read(iRThreads)=15, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=0, err=0, i=0, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, rPool={32:0}, tPool={31:0}] [L1305] EXPR 0 \read(iRThreads) VAL [\old(argc)=3, \read(iRThreads)=15, \read(iRThreads)=15, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=0, err=0, i=0, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, rPool={32:0}, tPool={31:0}] [L1305] COND TRUE 0 i < iRThreads VAL [\old(argc)=3, \read(iRThreads)=15, \read(iRThreads)=15, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=0, err=0, i=0, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, rPool={32:0}, tPool={31:0}] [L1306] FCALL, FORK 0 pthread_create(&rPool[i], ((void *)0), &funcB, ((void *)0)) VAL [\old(argc)=3, \read(iRThreads)=15, \read(iTThreads)=1, argc=3, argv={61:62}, argv={61:62}, data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=0, err=0, i=0, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, param={0:0}, pthread_create(&rPool[i], ((void *)0), &funcB, ((void *)0))=2, rPool={32:0}, tPool={31:0}] [L1254] 2 int t1 = -1; VAL [data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}, t1=-1] [L1255] 2 int t2 = -1; VAL [data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}, t1=-1, t2=-1] [L1257] COND FALSE 2 !(data1Value == 0) VAL [data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}, t1=-1, t2=-1] [L1261] 2 t1 = data1Value VAL [data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}, t1=1, t2=-1] [L1264] 2 t2 = data2Value VAL [data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=0, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}, t1=1, t2=0] [L1249] 1 data2Value = data1Value + 1 VAL [data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=2, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}, t1=1, t2=0] [L1251] 1 return ((void *)0); VAL [\result={0:0}, data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=2, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}, t1=1, t2=0] [L1266] COND TRUE 2 t2 != (t1 + 1) VAL [\result={0:0}, data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=2, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}, t1=1, t2=0] [L1268] 2 reach_error() VAL [\result={0:0}, data1Lock={17:0}, data1Value=1, data2Lock={16:0}, data2Value=2, iRThreads={14:0}, iTThreads={13:0}, param={0:0}, param={0:0}, param={0:0}, param={0:0}, t1=1, t2=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: funcBThread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 231 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.9s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 774 NumberOfCodeBlocks, 774 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 646 ConstructedInterpolants, 0 QuantifiedInterpolants, 2215 SizeOfPredicates, 3 NumberOfNonLiveVariables, 354 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 4/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 09:46:22,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-12-13 09:46:23,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1391b461-4246-42ea-8770-64eb6fbc15a0/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE